extern int zgghrd_(char *compq, char *compz, integer *n, integer *ilo, integer *ihi, doublecomplex *a, integer *lda, doublecomplex *b, integer *ldb, doublecomplex *q, integer *ldq, doublecomplex *z__, integer *ldz, integer *info, ftnlen compq_len, ftnlen compz_len);
/*:ref: lsame_ 12 4 13 13 124 124 */
/*:ref: xerbla_ 14 3 13 4 124 */
/*:ref: zlaset_ 14 8 13 4 4 9 9 9 4 124 */
/*:ref: zlartg_ 14 5 9 9 7 9 9 */
/*:ref: zrot_ 14 7 4 9 4 9 4 7 9 */
